Ransomware Research
Cowa Ransomware
Cowa is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Cowa
- First Seen
- July 1, 2025
How Cowa Ransomware Works
File Encryption Patterns
Cowa modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..cowa
Ransom Note and Payment Demands
After encrypting files, Cowa displays ransom notes demanding payment for file recovery:
+README-WARNING+.txt
Ransom message:
notes/+README-WARNING+.txt
Note locations:
EveryFolder
Ransom message:
notes/7F5E.tmp.png
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with Cowa ransomware:
qpnip.exe
cowa_visual.exe.bak
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About This Analysis
This Cowa ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like Cowa.
Last updated: September 30, 2025
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